#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int fun(int x) {
	int countx = 0;
	while (x) {
		countx++;
		x = x & (x -1);
	}
	return countx;
}
int main() {
	int i= 0;
	switch(i) {
	case 0:
		i++;
		printf("%d..", i);
	case 1:
		printf("%d..", i);
	case 2:
		printf("%d..", i);
	}
	printf("%d", fun(500));
}